Histamine Digest (formerly Histamine Block) - 30 Capsules - Seeking Health

Vitamin C, Diamine oxidase
Microcrystalline cellulose, vegetarian capsule (hypromellose, water, and gellan gum), and ascorbyl palmitate.

United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched next working day).

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Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 14 days in the same original and unopened packaging. Subject to T&C's.

Welzo is a UK-based health platform. Orders ship from the UK.

Take one capsule no more than 15 minutes before eating histamine-rich foods, or as your healthcare professional advises.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Diamine Oxidase (DAO) Enzyme

Diamine oxidase, or DAO, is an enzyme that drives the oxidative deamination of histamine in the digestive tract. This form is supplied as DAO from porcine kidney extract, standardised to a defined enzyme activity for consistency.

The DAO activity in this product is provided via DAOgest porcine kidney extract, with stability characteristics designed to maintain enzyme function in the digestive system. This approach concentrates on local activity in the gut instead of systemic distribution. This formula also includes microcrystalline cellulose, a vegetarian capsule, and ascorbyl palmitate to support product integrity.

What Does Diamine Oxidase Do?

Diamine oxidase helps break down histamine in the digestive tract, contributing to normal digestion in the gut. EFSA and NHS guidance emphasise the usual roles enzymes play in digestion, with activity kept in the digestive system rather than systemic sites.

In this formulation, the enzyme acts locally in the gut to support histamine breakdown as histamine-containing foods are eaten, helping to keep normal digestive responses in the digestive tract. This supports the intended digestive health framework without systemic effects.

This product is not intended to diagnose, treat, cure, or prevent any disease.

Seeking Health brings a well‑proven, evidence‑led formulation approach to Histamine Digest, reflecting our choice focus on brand credibility and scientific rigour. This brand is known for professional‑grade supplements that are carefully sourced, researched, and tested, anchored by founder Dr. Ben Lynch’s prevention‑focused ethos and commitment to bioavailable nutrients. The maker operates in state‑of‑the‑art facilities and aligns with cGMP Quality Standards, underscoring a long‑standing reputation for purity and potency. Their SOPs, stability testing programmes (up to two years), and transparency around manufacturing details are central to how we assess quality, supported by our very own quality certification process. Our medical team reviews brand heritage and manufacturing philosophy to align with Welzo standards, which you can explore with our medical team.

This brand shines in our vetting criteria for its dedicated focus on enzyme‑based formulations, strict quality controls, and a history of delivering high‑quality, research‑backed products. This makes Seeking Health especially well‑suited for a histamine‑degradation supplement like Histamine Digest, precisely because the brand emphasises purity, stability, and active ingredient integrity across the supply chain.